[ddsrph]

I will soon be installing 500 sq feet of Pergo max laminate flooring with the attached rubber cushion to a concrete slab floor. My question is since it already has the cushion attached would it be better to place over 6 or 8 mil plastic sheet or place over the dual cushion/vapor barrier material like Lowes sells (By Blue Hawk)?

Thanks
JM

 

[joecaption]

Really need to be contacting Pergo direct.
No matter what suggestions you may get here or any DIY if the manufacture disagrees with the way it was installed there is no warranty.

 

[ddsrph]

Really need to be contacting Pergo direct.
No matter what suggestions you may get here or any DIY if the manufacture disagrees with the way it was installed there is no warranty.

Joe
I went to the website and after much reading finally found the statement I was looking for. With the foam backing and used on a concrete floor all that is recommended is a 6 mil plastic sheeting with taped overlapped seams.

Thanks
JM

 

[SeniorSitizen]

Why is everyone so concerned with concrete? This parquet has been on bare concrete for over 50 years and covered with carpet for about 20 of those 50 before it was pulled, sanded and re-finished.

 

[joecaption]

Just a few reasons.
Laminate delaminates with any moisture from below or above.
How do we know how dry this basement is?
Was there a moisture barrier, foam insulation under the slab?
Was there a moisture test done?
Most of us would agree laminate would be one of the last type floors we would lay in a basement.

 

[ddsrph]

Just a few reasons.
Laminate delaminates with any moisture from below or above.
How do we know how dry this basement is?
Was there a moisture barrier, foam insulation under the slab?
Was there a moisture test done?
Most of us would agree laminate would be one of the last type floors we would lay in a basement.

My slab is elevated above dirt from two feet to as much as 5 feet with gravel fill. Internal and external drains that drain to outside. I used a 15 mil commercial vapor barrier. The concrete has cured without sealing for about 18 months. I did keep it wet for 7 days during initial cure. Most will be covered with tile but the part covered with Pergo will be sealed several days prior to Pergo installation.

 

[SeniorSitizen]

For those that have a Concrete Phobia, by all means install flooring material with a rubber back. But a word of warning. If the concrete surface is allowed to reach a temperature below dew point temperature of the ambient air I can guarantee the concrete surface will become wet. When that happens someone is going to tell you water migrated from beneath and that 6 mil plastic membrane must have failed.